Nitrosomonas europaea Winogradsky 1892 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Betaproteobacteria order Nitrosomonadales family Nitrosomonadaceae genus Nitrosomonas species Nitrosomonas europaea Name Homonyms Nitrosomonas europaea Nitrosomonas europaea Winogradsky 1892